Ignition element



June 29 1926.

J. A. HEANY IGNITICN ELEMENT Original Filed g t 2. 1921 2 Sheets-Sheet 1 INVENTOR.

June 29,1926. 590,891

J. A. HEANY IGNITION ELEMENT Original Filed August 2, 1921 2 Sheets-Sheet 2 rtmirmmma il? Pay 7 fly. a

IN V EN TOR.

X W TTORNEYS cylinder, the ordinary sparlr duce ump spark.

/With an engine rest the usual battery voltage is approximately 5.5 volts and when applied in use to my ignition element at this voltage only'a small portion near the top of the element would he heated to ignition temperature and whereby an explosion would not occur until the compressed fresh v v I n charge reached almost to the top or the pocket the tube. its e generator coininences to charge the voltage would rise to approximately 6.5 volts and the increased current due to this higher voltage would heat the ignition elenient approximately to the middle. engine speed corresponding to ordinary running conditions would give a charging voltage of approni .liitlfilly Z5 volts and this voltage the treine lower he heated an igniting temperature.

the lower end oi the uiting element is some distance baclr from the opening into the cylinder so as to insure some compression talring hetero tirin R terrin reference rear upon the drawing it) represents hotly member having a central cyin ongitudinal pocket ll. i'iornied therein receive the ignition ele" and 12 which is ot a el n n J. J3 in the oi ,tion the poor l l to i i. as a I t ,M 1 insulator noeruher is .oy are or con ductin," mounted insulation and upper end nut not shot t ";io' eni in 50 the element hotly. The lows periphtion of the hody i he t n eaded t for posi cninder lit the cy. and may otherwise the an:

proper as shown in the several drawin s is made of suitable material and particuarly formed and shaped so that the upper portion will have a more concentrated heating section than the intermediate or lower portion and so that an electrical current passing therethrough will first bring about the heating of said upper section and then the heating of the intermediate and lower sections as the voltage increases.

' In Figs. 1 to i inclusive the ignition elements l2 and 12 are shown supported at their opposite ends only and the rigidity of the wire coil is relied upon to maintain the element central within the pocket, whereas in Figs. 5, 6, 7 and 8 i have shown additional supporting means varying slightly in construction but each designed to prevent displacement of the wire 0011, yet shaped to insure heating by the electric current passing therethrough. For instance in Fig. 5 l have shown an. inner tuloe 19 which is positioned in the body and the wound wire ignition element 12 is positioned therein and supported by its peripheral surface engaging the inner cylindrical side walls of the shell in a way to prevent it from unwinding or otherwise becoming displaced.

lln Fig. 6 the element is shown tightly wound on a suspended high temperature insulator 15' positioned central within the poclre".

7 shows somewhat the same construc tion except that the suspended insulator 15' is or preferably smaller diameter than the coil wherehy the coil is not in direct contact with said insulator which is designed to act a support only in case of deformation ot the coil. Another form of construe-- tion would he to use a wire with a high temperature enamel or porcelain insulation wound in coil iorin as shown in Fig. 8 in which case the enamel covering would act as a protection to the wire 12 and keep it :trorn contacting with the igniting gases and accidental contact with the loody. @tlier methods preserving the shape or form of the ignition element may obviously be resorted to. Any metal, alloy or other material having necessary temperature and electrical properties can be used for the igniting element.

'lhe diagram of a tour-cylinder engine shown Fig. 9 is. to show how my element he connected up in use. In this view 520 represents a cylinder having a piston ll), it the ignition plug 12 the ignition element, an ord' iary storage hattery and 22 switch for manually making and breaking the circuit All tour ignition elements are connested in parallel so that in case of failure of one it would not afiect the operation or"- others. llhe charging generator 26 is connected to the cranlr shaft 23 of the en by means of the gears 24 and 25 and is lllh llll' driven thereby. A circuit connection 28 is placed between the generator terminal 27 and a point in the igniter circuit intermedi ate the battery and the switch terminal 31. An automatic cutout 29 of the usual type is interposed in the circuit 28 to prevent back discharge from the battery into the dynamo electric machine.

An additional feature of control if de sired'would be the insertion of a variable resistance in the circuit between the battery and the plugs whereby the time of ignition internal combustion engines consisting of an ignition element adapted to be heated by a low voltage current, and means for di ininishing the temperature of one part of said element over that of the other arts of the element, the length heated to ignition temperature depending on the voltage supplied.

3. An ignition'device for a variable speed internal combustionengine consisting of an ignition element adapted to be heated by a low voltage current, and means for di minishing the temperature of one part of said element over that of the other parts of the element, the section heated to ignition temperature depending on voltage supplied.

4. An ignition device for variable speed internal combustion engines consisting of a receptacle, a heating unit having portions adapted to be heated to different temperatures for automatically igniting a charge in the receptacle, means for supporting the unit in said receptacle, and means for vary-- ing the temperature in the portions of said unitwith the speed of the engine.

-5. An ignition device for variable speed internal combustion engines consisting of heating unit adapted to ignite a charge in the engine, and means depending on voltage across the terminals of said heating unit for advancing automatically the point of ignition of said device in accordance with the speed of the engine.

6. An ignition device for a variable speed internal combustion engine, consisting of a heating unit so arranged that at certain volt-- age a definite zone is heated and as voltage is increased due to speed of a variable speed engine that another zone of the heating unit is heated.

7 An ignition device for a variable speed ed and at a internal combustion engine, consisting of heating unit so arranged that'ata certain voltage one portion is heated and an increased voltage an adjoining portion is heated, and at a still higher voltage the entire to element is heated.

8. An ignition device for a variable speed internal combustion engine, consisting of a heating unit so constructed and arranged as. to afford less resistance to electric current 75 at one end than the other and thereby susceptible of being heated throughout its length beginning first at one end and gradu ally heating through to the other end.

An ignition device for a variable speed so internal combustion engine, consisting of body having an elongated pocket formed therein, a heating unit arranger longitndinally in said pocket so that at cei 'n voltage the inner end is heated and as voitage is in-- creased due to speed of a variable speed en gine that anotherzone of the heating unit is heated.

10. An ignition device for a variable speed internal combustion engine, consisting of a heating unitcomprising an elongated Wire coil, the windings at one end of which are closer together at one end than. tl' J other that at a certain voltage one portion is heatincreased voltage an adjoining ed, and at a still higher volticment is heated. ition device for a varia a stion engine co portion h f nition cl. ..---ent in the form gle piece of coiled wire adapted to be heated throughout its length by an electrio current passing therethrough. the individual convciutions of said coil being so nositioned relative to each other that radiaogresses with varying rapidity out the coil. I

ignition device fo a variable l combustion as consisting v i. sit of coiie' susceptible dually heat 'oughout its said unit along the thereof being greater per unit length of axis at one end than at the 1&9 other. r I

it An ignition device adapted to the a charge in internal combustion engine, comprising an ignition coil in the form of p p single piece coiled Wire adapted to M? EEO-K cylinders deviec i variable 5 tion oi e casing ti o-n engine 00115156" iii iiiteriiel (20"1l3115i3l011 gee she combine igiiitieii element adept-ad lee open said cylindei" u it in j low "voltage current a easie the casing having ii i-zi'comiected portions at diiieirezi'i, Estes, and

adapted to be heated l 1 element in the cssiieg, seid elemeans including a dynamo electric COHlpllSlDg e length 0t coiled Wire ezicliine loi heating" seid lHE'LGI'QOIlLlEClLQd .lvii convolutions positioned closer iieleportions. tively the'outei eiid than the inner 2J9. Iii an ignition means i501 cylinders of end. fflllGS, the cembiimtion of e casing 16. An ignition device tor variable oped to said cylinder a heating unit in the speed internal combustien engine, incl 5'" 3 casing having portions adapted to be heated at different rates dynamo electric machine connected to sin uiiit end {1 betteicy also connected to said seid dynamo electric tClllllEj and bet e 3 being adapted to sup Ctitifll'l; to the heating unit independ o ether i igniticzi s stem to? internal combustion engines having combustion cyl idei's, die eoiiibieetioii of e dynamo eleccliiiie, a storege battery edepted to :ti'cni said dyiieme electric coil positioned in 9, cylzm ignition element adapted to l; an electric cur lit a CZSlllg for i" el meet, means for supporti said cesiiig said elem length of Wi coiled cciii the coiivolutioiis at the lease oi s id being move "Widely separated time EPEX thereof J he s for ca" veltsi e current, mee 9 i npemtui'e y i of said engine circuits connecting d'lOZ1GlBlEGIL' Q E' said coil. better end dyiiemo electric mecliiiie, seid ciic t losing normally closed to me' the cfli iii heated condition and ziiiicel means connecting the dynamo e whereby w;l1e speed in s with. M at of the ei'igi iei iitio system for internal g combustion cyllie charges iii sto battery 'ili'lG adept/ed to sup the to the e current to the battery 8, ignition device i speed lites? combustion of en ignition element lay low Veltzige current, mes

.ion 9 M m i e c englea'es L casi me is operetiiig under its own to said cylizidei" 2i heating "(silt s o co l in the cylinders of seid i 83; and plurality 0:. means fol eii" :eomnelly connecting the dyseic unit, cm at said l-" U 1:1 machine, stoiege battery and lieet the heated concime e1" ccniiectii g till Slii

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